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8.L: Microbiology Unit Open Ended Questions 8.L.1.1: Viruses
8.L: Microbiology Unit Open Ended Questions 8.L.1.1: Viruses

Understanding Virulent Systemic Feline Calicivirus
Understanding Virulent Systemic Feline Calicivirus

... visiting a contaminated clinic for a simple weight check can develop fulminant disease a few days later. Some cats have continued shedding the virus intermittently for at least four months after clinical signs resolve. Although there are no documented cases where a fully recovered cat has transmitte ...
Parvovirus B19 (Fifth Disease)
Parvovirus B19 (Fifth Disease)

... parvoviruses that do not infect humans. Therefore, a child cannot "catch" parvovirus from a pet dog or cat, and a pet cat or dog cannot catch human parvovirus B19 from an ill child. Can adults get fifth disease? Yes, they can. An adult who is not immune can be infected with parvovirus B19 and either ...
Guidelines for the Management of Human Bites
Guidelines for the Management of Human Bites

... more likely if there is extensive tissue damage and if there is bleeding in the mouth of the biter. Although there have been some case reports of HIV transmission as a result of human bites (Rickman and Rickman, 1993; Andrea et al, 2004; QuavaJones et al, 2005; Didmar et al, 2006), this is extremely ...
Association of DC-SIGN Promoter Polymorphism with
Association of DC-SIGN Promoter Polymorphism with

... other haplotypes showed a significant association with infection. The haplotype containing all protective SNPs (⫺139T, ⫺336T, ⫺939T, ⫺1180T, and ⫺1466T) was quite rare (frequency ⱕ 0.001), so it was not possible to test the influence of this haplotype on the risk of HIV-1 infection. There was no sig ...
5.6 Infectious Disease Policy Because of the nature of the health
5.6 Infectious Disease Policy Because of the nature of the health

280 Appendix 41 Foot-and-mouth disease immunoprophylaxis
280 Appendix 41 Foot-and-mouth disease immunoprophylaxis

... (Crowther et al., 1993), but this site appears to overlap with site 1 (Mateu and Verdaguer, 2004). Site 1 involves both the GH-loop and the C-terminus of VP1 (Kitson et al., 1990). It is destroyed by trypsin treatment of the virus, which excizes the GH-loop (Strohmaier et al., 1982). Many antibodies ...
Egypt - Travel Doctor
Egypt - Travel Doctor

... clinics Australia wide. In Australia the local centre may be contacted on 1300 658 844, or by visiting www.traveldoctor.com.au. It is recommended that you visit a travel health professional 6-8 weeks prior to departure. However, if that time frame is not possible, remember – “It’s never too late to ...
Norovirus News What`s the Diagnosis?
Norovirus News What`s the Diagnosis?

Chapter 14: Principles of Disease and Epidemiology
Chapter 14: Principles of Disease and Epidemiology

... flora maintains pH of 3.5-4.5 which inhibits overgrowth of Candida albicans.  In mouth streptococci produce compounds that inhibit growth of many other cocci.  In intestine E. coli produce bacteriocins, which inhibit growth of closely related bacteria.  C. dificile is inhibited by normal intestin ...
controlling person-to-person transmission of viruses
controlling person-to-person transmission of viruses

... watery diarrhea and vomiting. The affected person also can have a headache, fever, nausea and abdominal cramps ("stomach ache"). In general, the symptoms begin 1 to 2 days following infection and may last for 1 to 10 days, depending on which virus causes the illness. In general, with norovirus, chil ...
Diseases of Bioterrorist Potential
Diseases of Bioterrorist Potential

... Isolation: separation of a contagious person/group from other people to prevent spread of infection Quarantine: restrictions of activities or limitations of freedom of movement of those presumed exposed to communicable disease to prevent contact with those who have not been exposed ...
Rift Valley fever virus
Rift Valley fever virus

... 1. Refik Saydam National Public Health Agency, Ankara, Turkey2. Ankara University, Faculty of Veterinary Medicine, Department of Virology, Ankara, Turkey 3. State Hospital, Manisa, Turkey 4. Training and Research Hospital, Sakarya, Turkey 5. Provincial Health Directorate, Manisa, Turkey6. Ministry o ...
Please Vote - HIV Care Management Initiative
Please Vote - HIV Care Management Initiative

... • Don’t report or record test result unless ELISA confirmed by western blot • Testing must be accompanied by pre- and posttest counseling according to State Law ...
upper respiratory tract infections `cat flu`
upper respiratory tract infections `cat flu`

... bacterial infection. Cats tend to be dull and depressed with a raised temperature, sneezing and are reluctant to eat. Coughing is also a feature in some cases. Rarely the virus will cause skin lesions and invade the lungs causing pneumonia. Without treatment signs usually resolve in 2-3 weeks but so ...
biomedical interventions
biomedical interventions

... than condoms and they could be used without negotiation between sexual partners prior to intercourse. The eventual use of microbicides could also lead to protection from HIV and allow serodiscordant couples to conceive without risk of transmission to the negative partner and/or the unborn child. ...
Genes-and-the-environment
Genes-and-the-environment

... Kaposi's sarcoma (KS) was once a very rare form of cancer, primarily affecting elderly men of Mediterranean and eastern European background (tumours on lower legs), until the 1980s, when it began to appear among AIDS patients. AIDS-related KS, emerged as one of the first illnesses observed among tho ...
Victims of their own success: Vaccines for infectious diseases
Victims of their own success: Vaccines for infectious diseases

... ● 12.5 million cases of rubella occurred in the United States ● 2,000 cases of encephalitis ● 11,250 fetal deaths ...
Review articles Clinical cases of parasitoses and fungal infections
Review articles Clinical cases of parasitoses and fungal infections

... invasions may lead to serious and even lifethreatening diseases. Of all parasitic diseases, malaria causes the most deaths. In 2015 alone, 214 million new cases of malaria were reported, of which approximately 438 thousand sufferers died, most of them in sub-Saharan Africa [2]. Plasmodium falciparum ...
An Overview of HIV Infection and Associated Co-Infections
An Overview of HIV Infection and Associated Co-Infections

... Data Source: Kansas HIV/AIDS Surveillance System, accessed on June 1st 2007, analysis by date of report ...
Tompkins-Flu-032017
Tompkins-Flu-032017

... 1918 Spanish Influenza were detected in survivors more than 90 years later!! ...
Canine Distemper Virus
Canine Distemper Virus

... n Treatment is supportive only. n Antiviral medications are not routinely used. o No single treatment is specific or ...
U4Virus Presentation
U4Virus Presentation

... are often the main vector. How (if any) is this virus transmission prevented? (Be specific, as many preventions are common to other viral infections) Some ways to prevent the transmission of rabies is by regular vaccinations of pets and getting pre-immunized, avoiding direct contact with wild or unf ...
Adult Medical-Surgical Nursing 2
Adult Medical-Surgical Nursing 2

... Streptococcus pneumoniae (Pneumococcus) Staphylococcus pneumoniae * gram negative ...
Problem 06- Fever
Problem 06- Fever

...  Secondary bacterial infection (staph/ strep), may lead to necrotising fasciitis, toxic shock. Consider if new onset fever or persistent after the first few days.  Encephalitis- occurs early (within 1 week of rash), generalised, good prognosis, Cerebellitis characteristic- ataxic with cerebellar s ...
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Hepatitis B



Hepatitis B is an infectious disease caused by the hepatitis B virus (HBV) which affects the liver. It can cause both acute and chronic infections. Many people have no symptoms during the initial infection. Some develop a rapid onset of sickness with vomiting, yellowish skin, feeling tired, dark urine and abdominal pain. Often these symptoms last a few weeks and rarely does the initial infection result in death. It may take 30 to 180 days for symptoms to begin. In those who get infected around the time of birth 90% develop chronic hepatitis B while less than 10% of those infected after the age of five do. Most of those with chronic disease have no symptoms; however, cirrhosis and liver cancer may eventually develop. These complications results in the death of 15 to 25% of those with chronic disease.The virus is transmitted by exposure to infectious blood or body fluids. Infection around the time of birth or from contact with other people's blood during childhood is the most frequent method by which hepatitis B is acquired in areas where the disease is common. In areas where the disease is rare, intravenous drug use and sexual intercourse are the most frequent routes of infection. Other risk factors include working in healthcare, blood transfusions, dialysis, living with an infected person, travel in countries where the infection rate is high, and living in an institution. Tattooing and acupuncture led to a significant number of cases in the 1980s; however, this has become less common with improved sterility. The hepatitis B viruses cannot be spread by holding hands, sharing eating utensils, kissing, hugging, coughing, sneezing, or breastfeeding. The infection can be diagnosed 30 to 60 days after exposure. Diagnosis is typically by testing the blood for parts of the virus and for antibodies against the virus. It is one of five known hepatitis viruses: A, B, C, D, and E.The infection has been preventable by vaccination since 1982. Vaccination is recommended by the World Health Organization in the first day of life if possible. Two or three more doses are required at a later time for full effect. This vaccine works about 95% of the time. About 180 countries gave the vaccine as part of national programs as of 2006. It is also recommended that all blood be tested for hepatitis B before transfusion and condoms be used to prevent infection. During an initial infection, care is based on the symptoms that a person has. In those who develop chronic disease antiviral medication such as tenofovir or interferon maybe useful, however these drugs are expensive. Liver transplantation is sometimes used for cirrhosis.About a third of the world population has been infected at one point in their lives, including 240 million to 350 million who have chronic infections. Over 750,000 people die of hepatitis B each year. About 300,000 of these are due to liver cancer. The disease is now only common in East Asia and sub-Saharan Africa where between 5 and 10% of adults have chronic disease. Rates in Europe and North America are less than 1%. It was originally known as serum hepatitis. Research is looking to create foods that contain HBV vaccine. The disease may affect other great apes as well.
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